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Fans randomly start and stop spinning.

Gh0st.
By Gh0st.
in Troubleshooting
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Posted

Preface:
Recently upgraded a few stuff (CPU, Ram, case and fans) but it has been months since so I really doubt it causes the problem that started earlier today.


Issue:

6 of my chassis fans and tower fans randomly start and stop spinning simultaneously, completely disregarding CPU temperature.

At times my PC just shut down itself but I am not too sure if that is related to CPU thermal.

Tried resetting BIOS fans' setting but that didn't help.

 

Question:
I am suspecting it could be either PSU or Motherboard issue. Any thoughts or help would be much appreciated!

 

Related Information:
Tower fans are connected via Y-splitter to cpu_fan1 and the rest are all connected via hubs to cpu_fan2.

 

Specs:

Hyte Y60

ASRock B450 Pro4
AMD Ryzen 5600
CM Hyper 212 Black Edition CPU Air Cooler with 2 Fans
Corsair Vengeance RGB Pro SL 3600MHz 32GB Kit

Gigabyte RTX 3060 Ti GAMING OC 8G

Gigabyte P650 Bronze
TUF Gaming TF120 ARGB x 6
Noctua NF-A12x25 PWM Chromax Black x 2

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Posted

First of all, why are all of your 6 TF120 ARGB fans tied to single CPU_FAN2 via a hub?

I'm gonna assume that the fan hub you're using is like the image below, is a simple fan hub without external power.

OIP.JQLdvmgq-7fxHfiIFIMo5QHaFj?pid=ImgDe

This is a big no-no, because, all 6 are drawing (at worst) ~18W (1 fan is according to ASUS, is ~3W) of power on a SINGLE fan header (CPU_FAN2).

I'm assuming that you have 3 intake and 2+1 outtake for your Y60 case. It's best if you split them up using 3-way splitter.

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AP is correct.  Too many fans on one connector.

I've been using computers since around 1978, started learning programming in 1980 on Apple IIs, started learning about hardware in 1990, ran a BBS from 1990-95, built my first Windows PC around 2000, taught myself malware removal starting in 2005 (also learned on Bleeping Computer), learned web dev starting in 2017, and I think I can fill a thimble with all that knowledge. 😉 I'm not an expert, which is why I keep investigating the answers that others give to try and improve my knowledge, so feel free to double-check the advice I give.

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Posted
  • Author
On 1/29/2023 at 9:59 PM, AlfaProto said:

First of all, why are all of your 6 TF120 ARGB fans tied to single CPU_FAN2 via a hub?

I'm gonna assume that the fan hub you're using is like the image below, is a simple fan hub without external power.

OIP.JQLdvmgq-7fxHfiIFIMo5QHaFj?pid=ImgDe

This is a big no-no, because, all 6 are drawing (at worst) ~18W (1 fan is according to ASUS, is ~3W) of power on a SINGLE fan header (CPU_FAN2).

I'm assuming that you have 3 intake and 2+1 outtake for your Y60 case. It's best if you split them up using 3-way splitter.

Hi, thanks for responding! After splitting the 8 chassis fans to cha_fan1 and cha_fan2, the issue still remains, and my pc shuts down randomly too. Is this an indication of PSU problem?

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22 hours ago, Gh0st. said:

Hi, thanks for responding! After splitting the 8 chassis fans to cha_fan1 and cha_fan2, the issue still remains, and my pc shuts down randomly too. Is this an indication of PSU problem?

I'm not sure if it's a PSU or motherboard problem. The route is to narrow down which is the issue.

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Posted

You can always check the fan settings in the bios

Asus ROG G531GT : i7-9750H - GTX 1650M +700mem - MSI RX6600 Armor 8G M.2 eGPU - Samsung 16+8GB PC4-2666 - Samsung 860 EVO 500G 2.5" - 1920x1080@145Hz (172Hz) IPS panel

Family PC : i5-4570 (-125mV) - cheap dual-pipe cooler - Gigabyte Z87M-HD3 Rev1.1 - Kingston HyperX Fury 4x4GB PC3-1600 - Corsair VX450W - an old Thermaltake ATX case

Test bench 1 : G3260 - i5-4690K - 6-pipe cooler - Asus Z97-AR - Panram Blue Lightsaber 2x4GB PC3-2800 - Micron CT500P1SSD8 NVMe - Intel SSD320 40G SSD

iMac 21.5" (late 2011) : i5-2400S, HD 6750M 512MB - Samsung 4x4GB PC3-1333 - WT200 512G SSD (High Sierra) - 1920x1080@60 LCD

 

Test bench 2: G3260 - H81M-C - Kingston 2x4GB PC3-1600 - Winten WT200 512G

Acer Z5610 "Theatre" : C2 Quad Q9550 - G45 Express - 2x2GB PC3-1333 (Samsung) - 1920x1080@60Hz Touch LCD - great internal speakers

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